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37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
/**
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* lodash 4.1.0 (Custom Build) <https://lodash.com/>
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* Build: `lodash modularize exports="npm" -o ./`
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* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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var baseFlatten = require('lodash._baseflatten'),
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map = require('lodash.map');
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/**
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* Creates an array of flattened values by running each element in `collection`
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* through `iteratee` and concating its result to the other mapped values.
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* The iteratee is invoked with three arguments: (value, index|key, collection).
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*
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* @static
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* @memberOf _
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* @category Collection
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* @param {Array|Object} collection The collection to iterate over.
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* @param {Function|Object|string} [iteratee=_.identity] The function invoked per iteration.
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* @returns {Array} Returns the new flattened array.
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* @example
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*
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* function duplicate(n) {
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* return [n, n];
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* }
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*
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* _.flatMap([1, 2], duplicate);
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* // => [1, 1, 2, 2]
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*/
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function flatMap(collection, iteratee) {
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return baseFlatten(map(collection, iteratee));
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}
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module.exports = flatMap;
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